Lamp.



E; A. HAWTHORNE.

LAMP. APPLLCATION FILED JULYZI, i913.

Patented May 16, 1916.

' liaveniorq ElLsworZI ud. Hmuihbrne LAMP.

Specification of Letters Patent.

Patented May 16, 1916.

, Application filed July 21, 1913. Serial N0..780,103.

proper, and is more particularly concerned with features which permitthe lamp to be readily converted from a bicycle headlight to ataillight, or to a marine lamp with white front light and red and greenside lights.

My invention will be best understood by reference to the followingspecification, when taken in connection with the accompanying drawingsof one specific embodi- Inent thereof, while its scope will be moreparticularly pointed out in the appended claims.

In the drawings: Figure 1 is a side elevation of a lamp embodying myinvention.

showing the same adapted for use as a ma-' rine lamp; Fig. 2 is a plansection on line 22 of Fig. 1; Fig.3 is a. sectional view on line 3-3 ofFig. 1, looln'ng toward the right; Fig. 4c is a detail rear elevation ofa lens and its bezel, which may be substituted for the one shownin Fig.1; and Fig. 5 is a rear elevation of a so-called red jewel and itsbezel, which may also be substituted for either of the other bezels.

40 Referring to the drawings, and to the embodiment of my inventionwhich I have selected for illustration, I have there shown a lamp havinga casing designated generally by numeral 6, and having a laterallyextending shell 7 within which may be mounted an appropriatelight-producing element, as for example a lamp bulb 8. If desired, thelamp may be provided with a reflector 9, which may be and preferably isof the parabolic type. This reflector may be securedin place in'anyappropriate manner, but herein the shell 7 is punched out, to providetwo tongues 10-10, which are bent inwardly over the front face of.the

marginal portion of the reflector, and-serve efi'ectually to securethe;latter in place.

As shown inFig. 1, the lamp is provided the main casing and providedwith lighttransmitting elements 13, 14 and 15. These light-transmittingelements may be of any other appropriate character, but preferably inpractice the element 13 is a white front lens, and the elements 14 and15 are what is lmown as red and green side jewels. The supplementalcasing 11 is provided with a bead 16, which may be termed a bezel,inasmuch as it forms a part of the means of attachment of the lens, orlenses, to the main lamp casing. As herein shown, this bead 7 providedwith an annular groove 17., which receives two lugs 18-18, appropriatelyformed on, or secured to the shell 7, preferably by punching or slittingthe latter to form tongues and bending the latter outwardly, as clearlyshown in Figs. 2 and 3, and serving as a means to secure the supplemental casing to the main casing, while allowingthe same to be readilydetached at will. To this end, the bead 16 is provided so with a cutawayportion, or notch, 19 serving to admit one of the lugs 18 into thegroove 17, and allowing the supplemental casingtg I be rotated to carrythe lug to a position i where it will be out of register with the g5notch. y

In applying the supplemental casing to the main casing, the head 16 isfirst hooked onto one of the lugs 18 while in the position indicated indotted lines in Fig. 2, after which the other lug is introduced into thenotch 19, and finally the supplemental casing is rotated practically 180degrees, thereby to carry the lug out of register with the notch 19. Asa means for limiting the rotation of the supplemental casing, the lattermay be, and preferably is, provided with an inwardly bent portion 20,forming a stop which serves to engage one of the lugs 18 and limit itsfurther movement, after being 10 brought to theposition shown in Fig. 3.If desired, this inwardly bent portion of the bead may be reinforced byplacing a small drop'of-solder in the groove beside the inwardly turnedportion. Preferably, each of the lugs 18 is given a twir -z. or bevel,as indicated in Fig. 1, thus facilitating the entrance of the lug intothe notch, and filling the groove in such a manner as to prevent thebezel from rattling. 4

In Figs. 4 and 5 I have shown bezels '21 and 22, having beads identicalwith those of the supplemental casingll, and provided, respectively,with light-transmitting elenients 23 and The element 23 may be a whitelens, and the element 24 a so-called red jewel, one serving to transmitlight when the lamp is used as a bicycle, or other vehicle, head light,and the other serving to transmit the light when the lamp serves as atail light.

By the provision of the novel and simple attaching means alreadydescribed, the lamp may be readily converted from a marine lamp to ahead light or tail light, as already stated, by simply rotating thebezel until one of the lugsarrives in a position Where is in registerwith the notch of the bead,

whereupon the lug may be Withdrawn through the. notch, and the otherside of the bead unhooked from the other lug.

\lhile I have herein shown and described one specific embodiment of myinvention for illustrative purposes, and have disclosed'and discussed indetail the construction and arrangement. incidental to one specificapplication thereof, it is to he understood that the invention islimited neither to the mere details or relative arrangement of parts,nor to its specific embodiment herein shown, but

that extensive deviations irom. the illustrated term orembmlinicnt ofthe invention may be made, without departing from the principlesthereof.

Having thus described my invention, what I claim and desire by LettersPatent to pro- 1. A lamp comprising in combination, a

casing, a lightiurnishing element within said casing, a light-red ectingelement within saidcasing, a plurality of lugs formed as integraltongues on said casing and bent outwardly therefrom, a plurality of lugsformed as integral tongues on said casing andbent inwardly to hold saidlight-reflecting element in place,and abezel rotatably mounted on saidcasing and provided with an annular groove in which said lugs arenormally located, said bezel being also provided with an opening throughwhich one of said lugs may be introduced into said groove and turned toa position out of register with said openin 2. A lamp comprising, incombination, a main casing, a light-furnishing element within saidcasing, a light-reflecting element secured within said main casing, asupplemental casing having means whereby it is capable of beinginstantly attached to and detached from said main casing, alighttransmitting element at the front of said supplemental casing, anda pair of light transmitting elements oneat either side of saidsupplemental casing, said supplemental casing with its lighttransmitting elements constituting a unitary structure individuallydistinct fl'OlIlStlld main-casing, temporarily attached thereto, andadapted to be removed without disturbing said light-reflecting element.

In testimony whereof, I have signed my name to this specification, inthe presence of two subscribing witnesses.

ELLSlVORTI-l A. HAWVTHORNE.

"Vitnesses F. HORACE l-Luwriioimn, HELEN 'G. FINAN.

